Adjustable end face attachment for rolls



' April 19, 1949.

W. 5.. RIESENFELD ADJUSTABLE END FACE ATTACHMENT FOR ROLLS Filed Aug. 5, 1945 Fri-5,1,

Patented Apr. 19, 1949 ADJUSTABLE William S. Riesenfeld,

York

END FACE ATTACHMENT FOR ROLLS New York, N. Y., assignor to Consolidated Sewing Machine 8; Supply 00., Inc., New York, N. Y., a corporation of New Application August 3, 1945, Serial No. 608,672

2 Claims.

This invention relates to machines for cutting up rolls of goods, such as fabrics or paper into sections, spools or ribbons of any desired width as well as to machines for winding up materials into rolls.

Machines of this kind in themselves are well- .known and my invention specifically resides in an attachment thereto whereby the rolls during the cutting or winding operation are so supported between the ends that the end faces thereof come out perfectly even and smooth.

With the old machines a disc, plate or the like is used as an abutment or support for one end of the roll while for the opposite end the operator uses his hand to apply pressure to the goods. This method has been found to be objectionable for various reasons: First, owing to the rapid rotation of the roll and, in the case of cutting machines, the vibration caused by the revolving cutter and the resulting friction during operation, the fingers become hot, rendering it very uncomfortable to steadily hold the hand against the goods so that the operator has frequently to relieve his pressure. As a result thereof the end faces of the spools or sections rarely come out even, but on the contrary tend to bulge out at one end and become hollowed or concaved at the opposite end. Additional time is therefore consumed in straightening out or evening up the end faces of the completed goods.

Another objection to the present practice used,

particularly with the present cutting machines,

is that each spool or section after it is cut must be displaced to provide space for the passing of the hand of the operator to press against the goods, which space, because of the limited length of the spindle is too narrow and cannot be effectively utilized.

The object of this invention is to provide a device whereby the objections hereinabove mentioned are obviated and whereby perfectly even and smooth end faces of the cut up sections or of the wound up roll of material will be automatically attained.

My invention will be more fully and clearly understood from the following description thereof by reference to the accompanying drawing which constitutes part of this specification and in which similar reference characters denote corresponding parts:

Figure 1 being a top plan view of a part of a conventional cutting machine showing the attachment in section applied to a roll of goods to be cut up;

Figure 2 is a section on line 22 of Figure 1 seen in the direction of the arrows;

. Figure 3 is a perspective view of a attachment, and

Figure 4 is a longitudinal section of a modified construction of said attachment.

Generally machines for cutting materials into sections, spools or ribbons comprise a revolving circular cutter or knife Ill supported on a rock lever H, a revolving spindle l2 on which a roll .g of the material to be cut up is slidab-ly mounted and which extends transversely of said knife and a plate or disc l3 at the rear end of the spindle I12 to act as an abutment to the rear end of the roll. The roll 9 is adapted to be fed toward the knife and the extent of feed can be adjusted. according to the width of the individual sections or spools desired. Since the means for the adjustment of the feed and operation of the feeding means are Well-known in themselves and do not form part of my invention, an illustration and description thereof are omitted.

The attachment constituting my invention comprises a member l4 preferably in form of a rigid disc of any suitable material having a flat end surface and a circular central bore Ma adapted to removably fit on the forward end of the spindle l2 and to bear against the forward end of the roll g. This member is adapted to be held with sufficient pressure against said roll by means of a sleeve l5 or the like adapted to be adjustably mounted on said spindle and a cap l6 threading thereon. This sleeve i5 is longitudinally split as at 15a and provided with a lining l! of rubber, leather or other suitable flexible or resilient material, so that when the cap 16 is screwed onto said sleeve the latter will be tightened on the spindle l2 in which condition it will secure the member M with pressure against the roll of material.

In order to enable the adjustment of the pressure to be exerted on the goods according to the particular softness or stiffness of the material to be treated, the attachment may be constructed according to the modification shown in Figure 4.

Here between the split sleeve l5 and the disc ll a rigid block l8 or the like is slidably mounted on the spindle l2 and is adapted to be actuated by a spring I9 suitably mounted between the inner end of the cap l6 and said block l8. Thus, on screwing the cap l6 onto the sleeve Hi the latter will be tightened to the spindle and thus secure the attachment to the spindle and at the same time compress the spring l9 which, in its turn, will press the block I8 against the disc 14. By

detail of said this means the pressure to be exerted against the material can be easily regulated by the mere turn of the cap in one or the other direction.

One of the vital advantages of my device is that the same can be applied to any existing cutting or winding machine without altering any part thereof and without the use of any tools.

The attachment permits the successive cutting of several sections (the number of said sections varying according to the available space on the spindle that generally is somewhat longer than the roll of material to be treated), without the necessity of displacing the cut sections and of readjusting the attachment on the spindle. a number of sections have been cut, the attachment as well as the cut sections in a group may be removed from the spindle after which the attachment may be replaced and adjusted to press against the end of the remaining part of the roll of material, and the cutting operation resumed. Since after each cut the sections remain compressed against each other and against the remaining part of the roll without requiring readjustment of the attachment, considerable time is saved in the operation by the use of my device.

Moreover, owing to the uniformity of pressure against the material, the efficiency of the machine is greatly enhanced.

While in the foregoing I have described my attaehment as applied to a cutting machine, it is clear that the same can be effectively used on cloth or paper winding machines so that the end faces of the wound up material will be perfectly even and smooth.

Since various modifications may be made in the construction of my device without departing from the spirit of my invention, I do not wish to limit myself to the details herein described and shown.

What I claim is:

1. An attachment for a roll cutting or like machine having a spindle on which diiferent length rolls of material are to be mounted and comprising a fixed flat abutment on the spindle for the inner end of the roll, a fiat disc abutment rotatable and slidable over the spindle into holding engagement with the outer end of the roll, a holding sleeve for said fiat disc abutment freely rotatable and slidable over the spindle, a lining of After frictional gripping material within said sleeve for gripping engagement with the spindle to secure the sleeve in adjusted position holding the flat disc abutment against the end of the roll, said sleeve being split in its outer end and said split portion being externally screw threaded and a sleeve contracting cap having screw threaded engagement over the outer split end of the sleeve and freely rotatable about the shaft for temporarily securing the sleeve in various holding positions on the spindle.

2. An attachment for a roll cutting or like ma.- chine having a spindle on which different length rolls of material are to be mounted and comprising a fixed flat abutment on the spindle for the inner end of the roll, a flat disc abutment rotatable and slidable over the spindle into holding engagement with the outer end of the roll, a holding sleeve for said flat disc abutment freely rotatable and slidable over the spindle, a lining of frictional gripping material within said sleeve for gripping engagement with the spindle to secure the sleeve in adjusted position holding the flat disc abutment against the end of the roll, said sleeve being split in its outer end and said split portion being externally screw threaded and a sleeve contracting cap having screw threaded engagement over the outer split end of the sleeve and freely rotatable about the shaft for temporarily securing the sleeve in various holding positions on the spindle, and spring means interposed between the inner end of said screw cap and the flat disc abutment for efiecting application of a constant end pressure to the end of the roll on the spindle.

WILLIAM S. RIESENFELD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 841,727 Shigley Jan. 22, 1907 862,109 Roth July 30, 1907 1,023,419 Dewey Apr. 16, 1912 1,147,964 Mellon July 27, 1915 1,544,145 Foothorap June 30, 1927 

